diff --git a/upload/admin/controller/payment/bitcoin.php b/upload/admin/controller/payment/bitcoin.php
index ab9b069..baa727c 100644
--- a/upload/admin/controller/payment/bitcoin.php
+++ b/upload/admin/controller/payment/bitcoin.php
@@ -139,6 +139,26 @@ public function index() {
             'href'      => $this->url->link('payment/bitcoin', 'token=' . $this->session->data['token'], 'SSL'),
             'separator' => ' :: '
         );
+		
+		$result = $this->db->query("SHOW COLUMNS FROM ". DB_PREFIX ."order;");
+		$rows = $result->rows;
+		$max = $result->num_rows;
+		$bitcoin_total_in_db = 0;
+		$bitcoin_address_in_db = 0;
+		for($i = 0;$i < $max;$i++) {
+			if($rows[$i]["Field"] == "bitcoin_total") {
+				$bitcoin_total_in_db = 1;
+			}
+			if($rows[$i]["Field"] == "bitcoin_address") {
+				$bitcoin_address_in_db = 1;
+			}
+		}
+		if(!$bitcoin_total_in_db) {
+			$this->db->query("ALTER TABLE ". DB_PREFIX ."order ADD bitcoin_total DOUBLE AFTER currency_value;");
+		}
+		if(!$bitcoin_address_in_db) {
+			$this->db->query("ALTER TABLE ". DB_PREFIX ."order ADD bitcoin_address VARCHAR(34) AFTER bitcoin_total;");
+		}
 
 		$this->data['action'] = HTTPS_SERVER . 'index.php?route=payment/'.$this->payment_module_name.'&token=' . $this->session->data['token'];
 		$this->data['cancel'] = HTTPS_SERVER . 'index.php?route=extension/payment&token=' . $this->session->data['token'];	
@@ -215,10 +235,4 @@ public function index() {
 		$this->response->setOutput($this->render(TRUE), $this->config->get('config_compression'));
 	}
 	
-	public function update_db() {
-
-		$this->db->query("ALTER TABLE ". DB_PREFIX ."order ADD bitcoin_total DOUBLE AFTER currency_value;");
-		$this->db->query("ALTER TABLE ". DB_PREFIX ."order ADD bitcoin_address VARCHAR(34) AFTER bitcoin_total;");
-
-	}
 }
diff --git a/upload/admin/language/english/payment/bitcoin.php b/upload/admin/language/english/payment/bitcoin.php
index 81b72d9..bc1be6f 100644
--- a/upload/admin/language/english/payment/bitcoin.php
+++ b/upload/admin/language/english/payment/bitcoin.php
@@ -26,7 +26,7 @@
 $_['entry_prefix']     = 'The prefix for the address labels:<br /><span class="help">The account will be in the form [prefix]_[order_id]</span>';
 $_['entry_order_status'] = 'Status of a new order:';
 $_['entry_show_btc']       = 'Show BTC as a store currency:';
-$_['entry_blockchain']       = 'Is this a blockchain.info JSON-RPC server?:';
+$_['entry_blockchain']       = 'Is this a blockchain.info JSON-RPC server?';
 $_['entry_btc_decimal']       = 'Calculate BTC amount to this many decimal places:';
 $_['entry_countdown_timer']       = 'Time to complete order:<br /><span class="help">In seconds</span>';
 $_['entry_status']       = 'Status:';
diff --git a/upload/admin/view/template/payment/bitcoin.tpl b/upload/admin/view/template/payment/bitcoin.tpl
index ec37520..bd31754 100644
--- a/upload/admin/view/template/payment/bitcoin.tpl
+++ b/upload/admin/view/template/payment/bitcoin.tpl
@@ -22,9 +22,6 @@ Copyright (c) 2013 John Atkinson (jga)
   <div class="content">
     <form action="<?php echo $action; ?>" method="post" enctype="multipart/form-data" id="form">
       <table class="form">
-        <tr>
-          <td colspan="2"><a href="index.php?route=payment/bitcoin/update_db&token=<?php echo $this->session->data['token']; ?>">Click here the first time you configure this extension to prepare your database.</a></td>
-        </tr>
         <tr>
           <td><span class="required">*</span> <?php echo $entry_username; ?></td>
           <td><input type="text" name="bitcoin_rpc_username" value="<?php echo $bitcoin_rpc_username; ?>" style="width:300px;" />